Replace rinja custom syntax with default syntax

Since all angular code was removed, there is no conflict anymore before angular and jinja2 syntaxes so we can just use plain jinja2 syntax.

Author: GuillaumeGomez

rinja.toml

@@ -1,8 +1,2 @@
 [general]
 dirs = ["util/gh-pages/"]
-default_syntax = "mixed"
-
-[[syntax]]
-name = "mixed"
-expr_start = "{("
-expr_end = ")}"

util/gh-pages/index_template.html

@@ -143,50 +143,50 @@ <h1>Clippy Lints</h1>
 </div>
 </div>
  {% for lint in lints %}
-<articleclass="panel panel-default collapsed" id="{(lint.id)}">
-<headerclass="panel-heading" onclick="expandLint('{(lint.id)}')">
+<articleclass="panel panel-default collapsed" id="{{lint.id}}">
+<headerclass="panel-heading" onclick="expandLint('{{lint.id}}')">
 <h2class="panel-title">
-<divclass="panel-title-name" id="lint-{(lint.id)}">
-<span>{(lint.id)}</span>
-<ahref="#{(lint.id)}" class="anchor label label-default" onclick="openLint(event)">&para;</a>
+<divclass="panel-title-name" id="lint-{{lint.id}}">
+<span>{{lint.id}}</span>
+<ahref="#{{lint.id}}" class="anchor label label-default" onclick="openLint(event)">&para;</a>
 <ahref="" class="anchor label label-default" onclick="copyToClipboard(event)">
  &#128203;
 </a>
 </div>
 
 <divclass="panel-title-addons">
-<spanclass="label label-lint-group label-default label-group-{(lint.group)}">{(lint.group)}</span>
+<spanclass="label label-lint-group label-default label-group-{{lint.group}}">{{lint.group}}</span>
 
-<spanclass="label label-lint-level label-lint-level-{(lint.level)}">{(lint.level)}</span>
+<spanclass="label label-lint-level label-lint-level-{{lint.level}}">{{lint.level}}</span>
 
 <spanclass="label label-doc-folding">&plus;</span>
 </div>
 </h2>
 </header>
 
 <divclass="list-group lint-docs">
-<divclass="list-group-item lint-doc-md">{(Self::markdown(lint.docs))}</div>
+<divclass="list-group-item lint-doc-md">{{Self::markdown(lint.docs)}}</div>
 <divclass="lint-additional-info-container">
  {# Applicability #}
 <divclass="lint-additional-info-item">
 <span> Applicability: </span>
-<spanclass="label label-default label-applicability">{( lint.applicability_str() )}</span>
+<spanclass="label label-default label-applicability">{{ lint.applicability_str() }}</span>
 <ahref="https://doc.rust-lang.org/nightly/nightly-rustc/rustc_lint_defs/enum.Applicability.html#variants">(?)</a>
 </div>
  {# Clippy version #}
 <divclass="lint-additional-info-item">
 <span>{% if lint.group == "deprecated" %}Deprecated{% else %} Added{% endif %} in: </span>
-<spanclass="label label-default label-version">{(lint.version)}</span>
+<spanclass="label label-default label-version">{{lint.version}}</span>
 </div>
  {# Open related issues #}
 <divclass="lint-additional-info-item">
-<ahref="https://github.com/rust-lang/rust-clippy/issues?q=is%3Aissue+{(lint.id)}">Related Issues</a>
+<ahref="https://github.com/rust-lang/rust-clippy/issues?q=is%3Aissue+{{lint.id}}">Related Issues</a>
 </div>
 
  {# Jump to source #}
  {% if let Some(id_location) = lint.id_location %}
 <divclass="lint-additional-info-item">
-<ahref="https://github.com/rust-lang/rust-clippy/blob/master/clippy_lints/{(id_location)}">View Source</a>
+<ahref="https://github.com/rust-lang/rust-clippy/blob/master/clippy_lints/{{id_location}}">View Source</a>
  {% endif %}
 </div>
 </div>